Firstly, if we Convert into a Headphone, we may start emitting a lot of sound, others may not like this!
Secondly, some latest headphones are very small in size, if we Convert into a miniature Headphone, everything else will now start seeming very big to us!
Thirdly, some people love to listen to loud music, if we Convert into a Headphone, these people would be one happy lot!
Lastly, noisecancelling headphones are now available in the market, if we Convert into a noisecancelling Headphone, even we may begin to cancel unwanted noise!